16 switchable frequencies 863-865Mhz can be used in many countries Designed for Wireless camera system Cardioid pattern Wireless condenser microphone for camera system. This microphone has 16 switchable frequencies and can be used together with the WCA Pack. It needs 2 AA batteries and has an excellent sound quality. The gain is adjustable below the capsule and the frequency can be set inside the battery case.Jellemzõk:RF Output: Maximum 10mWDisplay: ChannelControls: Power On/Off, Mute, Gain, Channel selectFrequency response: 40-16.500 HzBattery: 2 x AA 1.5V (not included)Length: 265mmDiameter: 45mmWeight: 0.22 Kg